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A sample of 64 observations is selected from a normal

H0 : μ ≥ 220

H1 : μ < 220

A sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is 15. Conduct the following test of hypothesis using the .025 significance level.

What is the decision rule? (rounded to 2 decimals)H0 when z <
Value of the test statistic? (rounded 3 places)
What is the p-value? (rounded 4 decimals)

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